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SiENBE04-925_A

Service

Manual

Inverter Pair

Wall Mounted Type G-Series

[Applied Models]

Inverter Pair: Heat Pump

SIENBE04-925_A_FRONT.pdf 1

24/02/2011 13:53:43

Содержание Inverter FTXL20G2V1B

Страница 1: ...SiENBE04 925_A Service Manual Inverter Pair Wall Mounted Type G Series Applied Models z Inverter Pair Heat Pump...

Страница 2: ...SiENBE04 925_A Service Manual Inverter Pair Wall Mounted Type G Series Applied Models z Inverter Pair Heat Pump...

Страница 3: ...SiENBE04 925_A Table of Contents i Inverter Pair Wall Mounted Type G Series zHeat Pump Indoor Units FTXL20G2V1B FTXL25G2V1B FTXL35G2V1B Outdoor Units RXL20G2V1B RXL20G2V1B9 RXL25G2V1B RXL35G2V1B...

Страница 4: ...stat Control 26 1 7 NIGHT SET Mode 27 1 8 ECONO Operation 28 1 9 2 Area INTELLIGENT EYE Operation 29 1 10 Inverter POWERFUL Operation 31 1 11 Other Functions 32 2 Function of Thermistor 33 3 Control S...

Страница 5: ...t 82 4 7 Unspecified Voltage between Indoor Unit and Outdoor Unit 83 4 8 Outdoor Unit PCB Abnormality 84 4 9 OL Activation Compressor Overload 86 4 10 Compressor Lock 87 4 11 DC Fan Lock 88 4 12 Input...

Страница 6: ...97 3 5 Removal of Reactor Partition Plate 205 3 6 Removal of Sound Blanket 207 3 7 Removal of Four Way Valve 209 3 8 Removal of Compressor 212 4 Outdoor Unit RXL25G2V1B 214 4 1 Removal of Outer Panels...

Страница 7: ...g 269 2 3 Jumper and Switch Settings 270 3 Application of Silicon Grease to a Power Transistor and a Diode Bridge 271 Part 9 Appendix 272 1 Piping Diagrams 273 1 1 Indoor Unit 273 1 2 Outdoor Unit 274...

Страница 8: ...SiENBE04 925_A vi Table of Contents...

Страница 9: ...power cable plug from the plug socket before disassembling the equipment for repair Working on the equipment that is connected to the power supply may cause an electrical shook If it is necessary to s...

Страница 10: ...electrical shock Do not clean the air conditioner by splashing water Washing the unit with water may cause an electrical shock Be sure to provide the grounding when repairing the equipment in a humid...

Страница 11: ...heat generation or fire When wiring between the indoor and outdoor units make sure that the terminal cover does not lift off or dismount because of the cable If the cover is not mounted properly the t...

Страница 12: ...ent children from swallowing it If a child swallows the coin battery see a doctor immediately Warning Caution Installation of a leakage breaker is necessary in some cases depending on the conditions o...

Страница 13: ...re to install the packing and seal on the installation frame properly If the packing and seal are not installed properly water may enter the room and wet the furniture and floor For unitary type only...

Страница 14: ...Introduction SiENBE04 925_A xii...

Страница 15: ...SiENBE04 925_A List of Functions 1 Part 1 List of Functions 1 Functions 2...

Страница 16: ...after Power Failure Horizontal Auto Swing Right and Left Self Diagnosis Digital LED Display 3 D Airflow Wiring Error Check COMFORT AIRFLOW Operation Anti Corrosion Treatment of Outdoor Heat Exchanger...

Страница 17: ...SiENBE04 925_A Specifications 3 Part 2 Specifications 1 Specifications 4...

Страница 18: ...rd Air Filter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 12 0 12 0 11 0 13 0 13 0 12 0 12 0 12 0 11 0 13 0 13 0 12 Power Consumption Rated W 26 26 26 28...

Страница 19: ...ilter Removable Washable Mildew Proof Removable Washable Mildew Proof Running Current Rated A 0 11 0 11 0 10 0 14 0 14 0 13 0 12 0 12 0 11 0 15 0 14 0 14 Power Consumption Rated W 24 24 24 30 30 30 26...

Страница 20: ...Specifications SiENBE04 925_A 6 Specifications...

Страница 21: ...NBE04 925_A Printed Circuit Board Connector Wiring Diagram 7 Part 3 Printed Circuit Board Connector Wiring Diagram 1 Printed Circuit Board Connector Wiring Diagram 8 1 1 Indoor Unit 8 1 2 Outdoor Unit...

Страница 22: ...swing motors 6 S46 Connector for display PCB 7 S47 Connector for signal receiver PCB 8 H1 H2 H3 FG Connector for terminal board 9 JA Address setting jumper Refer to page 268 for detail JB Fan speed s...

Страница 23: ...04 925_A Printed Circuit Board Connector Wiring Diagram Printed Circuit Board Connector Wiring Diagram 9 PCB Detail PCB 1 Control PCB V1 FU1 S1 S41 S21 S47 JB JA JC S46 S25 LED A S32 FG H1 H2 H3 2P206...

Страница 24: ...or Wiring Diagram SiENBE04 925_A 10 Printed Circuit Board Connector Wiring Diagram PCB 4 INTELLIGENT EYE Sensor PCB PCB 2 Signal Receiver PCB PCB 3 Display PCB 3P210728 1 S48 3P210728 1 RTH1 SW1 S49 L...

Страница 25: ...use 20 A 250 V 8 V2 V3 Varistor 1 S10 Connector for filter PCB 2 S20 Connector for electronic expansion valve coil 3 S30 Connector for compressor 4 S40 Connector for overload protector 5 S50 Connector...

Страница 26: ...ENBE04 925_A 12 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Filter PCB PCB 2 Main PCB E1 E2 V2 FU3 HL1HN1 S S50 on main PCB HL2 S11 HN2 HR1 3P203203 1 V3 S10 S20 2P203198 1 J5 S90...

Страница 27: ...ter PCB 2 S20 Connector for electronic expansion valve coil 3 S40 Connector for overload protector 4 S50 Connector for magnetic relay 5 S70 Connector for fan motor 6 S80 Connector for four way valve c...

Страница 28: ...t Board Connector Wiring Diagram PCB Detail PCB 1 Filter PCB PCB 2 Main PCB PCB 3 Forced Operation Button PCB HR1 HL2 3P254234 1 FU1 HN2 S FU3 AC2 E1 E2 AC1 S11 V3 V2 S50 on main PCB S10 J5 S90 FU2 S1...

Страница 29: ...ector for fan motor 4 S80 Connector for four way valve coil 5 S90 Connector for thermistors outdoor temperature outdoor heat exchanger discharge pipe 6 U V W Connector for compressor 7 HL1 HN1 S Conne...

Страница 30: ...Board Connector Wiring Diagram SiENBE04 925_A 16 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Control PCB HN1 HL1 E E2 S V1 FU1 LED A S80 S20 S90 S70 HR2 HR1 FU2 S40 J5 U V W 2P208...

Страница 31: ...itor PCB 5 S70 Connector for fan motor 6 S80 Connector for four way valve coil 7 S90 Connector for thermistors outdoor temperature outdoor heat exchanger discharge pipe 8 AC1 AC2 Connector for termina...

Страница 32: ...NBE04 925_A 18 Printed Circuit Board Connector Wiring Diagram PCB Detail PCB 1 Main PCB PCB 2 Service Monitor PCB V3 V11 AC1 FU2 E1 E2 HR1 HR2 FU3 W 2P169046 5 S40 S20 V U S70 S90 S51 S10 AC2 S101 V5...

Страница 33: ...nverter POWERFUL Operation 31 1 11 Other Functions 32 2 Function of Thermistor 33 3 Control Specification 34 3 1 Mode Hierarchy 34 3 2 Frequency Control 35 3 3 Controls at Mode Changing Start up 37 3...

Страница 34: ...ted by additional parameters in the following cases Frequency restrictions Initial settings Forced cooling operation Inverter Principle To regulate the capacity a frequency control is needed The inver...

Страница 35: ...ce the set temperature is reached the energy saving operation enables to maintain the room temperature at low power Frequency Limits The following functions regulate the minimum and maximum frequency...

Страница 36: ...he auto swing process for cooling dry heating and fan 3 D Airflow Alternative repetition of vertical and horizontal swing motions enables uniform air conditioning of the entire room This function is e...

Страница 37: ...n automatic fan speed operation upper limit is at M tap in 30 minutes from the operation start Heating On heating mode the fan speed is regulated according to the indoor heat exchanger temperature and...

Страница 38: ...emperature at start up and the target temperature is divided into two zones Then the unit operates in the dry mode with an appropriate capacity for each zone to maintain the temperature and humidity a...

Страница 39: ...ion value 1 The set temperature Ts determines the target temperature Tt Ts 18 30 C 2 The target temperature Tt is calculated as Tt Ts C where C is the correction value C 0 C 3 Thermostat ON OFF point...

Страница 40: ...eturns to the zone C after being in the zone A The system resumes from defrost control in any zones except A The operation turns on in any zones except A The monitoring time has passed while the tempe...

Страница 41: ...then automatically raises the target temperature slightly in the case of cooling or lowers it slightly in the case of heating This prevents excessive cooling in summer and excessive heating in winter...

Страница 42: ...NO button When this function is activated the maximum capacity also decreases The remote control can send the ECONO command when the unit is in COOL HEAT DRY or AUTO operation This function can only b...

Страница 43: ...the indoor unit carries out a sampling every 20 msec and if it detects 10 cycles of the wave in one second in total corresponding to 20 msec 10 200 msec and when the ON signal continues 3 sec it judg...

Страница 44: ...ift the airflow direction to area B left side 2 Detection signal ON in area A Shift the airflow direction to area B left side 3 Detection signal ON in area B Shift the airflow direction to area A righ...

Страница 45: ...0 minutes Ex POWERFUL operation in cooling mode Operation mode Fan speed Target temperature COOL H tap 50 rpm 18 C DRY Dry rotating speed 50 rpm Lowered by 2 5 C HEAT H tap 50 rpm 31 C FAN H tap 50 rp...

Страница 46: ...ton for 5 to 9 seconds while the unit is not operating Refer to Forced operation mode on page 48 for detail Note When the ON OFF button is pressed for 10 seconds or more the forced operation is stoppe...

Страница 47: ...ge pipe temperature used in place of the inner temperature of the compressor rises abnormally the operating frequency becomes lower or the operation halts 2 The discharge pipe thermistor is used for d...

Страница 48: ...Detail There are following modes stop cooling includes drying heating include defrosting Note Unless specified otherwise an indoor dry operation command is regarded as cooling operation Air conditione...

Страница 49: ...n upper limit frequency among the frequency upper limits of the following functions Compressor protection input current discharge pipe temperature heating peak cut freeze up protection defrost 3 Deter...

Страница 50: ...ency does not change for more than a certain fixed time the frequency is adjusted according to the D value When the D value is small the frequency is lowered When the D value is large the frequency is...

Страница 51: ...peration in open phase stops RXL20G2V1B9 Outdoor temperature 7 C Control A Outdoor temperature 7 C Control B Control A ON condition Discharge pipe temperature 10 C OFF condition Discharge pipe tempera...

Страница 52: ...ompressor for heating 2 When the operation mode changes to cooling from heating 3 When starting compressor for defrosting or resetting 4 When starting compressor for the first time after the reset wit...

Страница 53: ...from going up further Detail Zone Control Stop zone When the temperature reaches the stop zone the compressor stops Drooping zone The timer starts and the frequency is drooping Keep zone The upper lim...

Страница 54: ...cy 2 Hz After this the output frequency is pulled down by 2 Hz every second until it reaches the keep zone Keep zone The present maximum frequency goes on Reset zone Limit of the frequency is canceled...

Страница 55: ...termines the frequency upper limit to prevent abnormal high pressure Detail R4561 Reset zone Indoor heat exchanger thermistor temperature Up zone Keep zone Drooping zone Stop zone 0 C 5 5 C 7 5 C 9 5...

Страница 56: ...on speed of the outdoor fan is reduced by the command of the indoor outdoor quiet operation 7 Fan control for POWERFUL operation The rotation speed of the outdoor fan is increased while the POWERFUL o...

Страница 57: ...on The compressor operates for 6 minutes More than minutes of accumulated time pass since the start of the operation or ending the previous defrosting Conditions for Canceling Defrost The judgment is...

Страница 58: ...trol when the discharge pipe thermistor is disconnected Feedback Control 1 Discharge pipe temperature control Detail The followings are the examples of control which function in each mode by the elect...

Страница 59: ...g if the discharge pipe temperature exceeds a certain value the electronic expansion valve opens and the refrigerant runs to the low pressure side This procedure lowers the discharge pipe temperature...

Страница 60: ...ied value in a certain time period the target discharge pipe temperature control is canceled and the target opening of the electronic expansion valve is changed according to the shift 3 11 8 Target Di...

Страница 61: ...on If the power consumption is below the specified value and the frequency is higher than the specified frequency it is regarded as refrigerant shortage The power consumption is small comparing with t...

Страница 62: ...outdoor unit is not abnormal and not in the 3 minute standby mode 2 The outdoor unit is not operating The forced operation is allowed when the above both conditions are met Start 1 Press the forced o...

Страница 63: ...peration Manual 51 2 1 Auto Dry Cool Heat Fan Operation 52 2 2 Adjusting the Airflow Direction 54 2 3 COMFORT AIRFLOW and INTELLIGENT EYE Operation 56 2 4 POWERFUL Operation 59 2 5 OUTDOOR UNIT QUIET...

Страница 64: ...ver method of using it In order to meet this expectation of the users giving sufficient explanations taking enough time can be said to reduce about 80 of the requests for servicing However good the in...

Страница 65: ...ce to start operation Press once again to stop it 6 TEMPERATURE adjustment buttons It changes the temperature setting 7 MODE selector button It selects the operation mode AUTO DRY COOL HEAT FAN 8 QUIE...

Страница 66: ...ssing of the button advances the mode setting in sequence AUTO DRY COOL HEAT FAN 2 Press ON OFF button ON is displayed on the LCD The OPERATION lamp lights up To stop operation 3 Press ON OFF button a...

Страница 67: ...itches into defrosting operation to take away the frost During defrosting operation hot air does not flow out of indoor unit A pinging sound may be heard during defrosting operation which however does...

Страница 68: ...splayed on the LCD and the flaps will begin to swing 2 When the flaps have reached the desired position press SWING button once more The flaps will stop moving disappears from the LCD To adjust the ve...

Страница 69: ...ional 3 D Airflow Using three dimensional airflow circulates cold air which tends to collected at the bottom of the room and hot air which tends to collect near the ceiling throughout the room prevent...

Страница 70: ...the COMFORT SENSOR button is pressed a different setting option is displayed on the LCD To cancel operation 2 Press COMFORT SENSOR button Press the button to select Blank 1 2 Blank Display Operation...

Страница 71: ...justments The flaps will move upward while cooling so that the airflow will be directed upward The flaps will move downward while heating so that the airflow will be directed downward Cooling operatio...

Страница 72: ...functions simultaneously When both of them are in use the air conditioner will not direct the airflow towards the people Sensor may not detect moving objects further than 5m away Check the applicatio...

Страница 73: ...tion cannot be used together with ECONO QUIET or COMFORT Operation Priority is given to the function of whichever button is pressed last POWERFUL Operation can only be set when the unit is running Pre...

Страница 74: ...on the LCD To cancel OUTDOOR UNIT QUIET operation 2 Press QUIET button again disappears from the LCD Notes on COMFORT AIRFLOW operation This function is available in COOL HEAT and AUTO modes This is...

Страница 75: ...ONO mode vary with the connecting outdoor unit Notes on ECONO operation ECONO Operation can only be set when the unit is running Pressing the OFF button causes the setting to be canceled and the disap...

Страница 76: ...ing by 10 minutes Holding down either button changes the setting rapidly 3 Press OFF TIMER button again The TIMER lamp lights up To cancel the OFF TIMER operation 4 Press CANCEL button The TIMER lamp...

Страница 77: ...e setting by 10 minutes Holding down either button changes the setting rapidly 3 Press ON TIMER button again The TIMER lamp lights up To cancel the ON TIMER operation 4 Press CANCEL button The TIMER l...

Страница 78: ...tings for example makes it possible to schedule operating mode and set temperature changes Furthermore by using OFF OFF OFF OFF settings only the turn OFF time of each day can be set This will turn OF...

Страница 79: ...elect the desired mode Pressing the SELECT button changes ON or OFF setting in sequence In case the reservation has already been set selecting blank deletes the reservation Go to STEP 9 if blank is se...

Страница 80: ...e week Refer to Copy mode Notes on WEEKLY TIMER operation Do not forget to set the clock on the remote control first The day of the week ON OFF TIMER mode time and set temperature only for ON TIMER mo...

Страница 81: ...of the week 5 Press COPY button The reservation will be copied to the selected day of the week The whole reservation of the selected day of the week will be copied To continue copying the settings to...

Страница 82: ...med 1 Press button The day of the week and the reservation number of the current day will be displayed 2 Press SELECT button to select the day of the week and the reservation number to be confirmed Pr...

Страница 83: ...to Setting mode When selecting desired mode at STEP 4 in setting mode select blank The reservation will be deleted The reservations for each day of the week This function can be used for deleting res...

Страница 84: ...it PCB Abnormality 84 4 9 OL Activation Compressor Overload 86 4 10 Compressor Lock 87 4 11 DC Fan Lock 88 4 12 Input Overcurrent Detection 89 4 13 Four Way Valve Abnormality 90 4 14 Discharge Pipe Te...

Страница 85: ...rotection device of the indoor or outdoor unit is activated or when the thermistor malfunctions 2 When a signal transmission error occurs between the indoor and outdoor units In either case conduct th...

Страница 86: ...ting operation cannot be used when the outdoor temperature is 20 C or higher and cooling operation cannot be used when the outdoor temperature is below 10 C Diagnose with remote control indication 75...

Страница 87: ...quence shown below Note 1 A short beep pi and two consecutive beeps pi pi indicate non corresponding codes 2 To return to the normal mode hold the timer cancel button down for 5 seconds When the remot...

Страница 88: ...the figure until you hear the sound of beep or pi pi 3 Diagnose by the sound H pi The figure of the ten s place does not accord with the error code H pi pi The figure of the ten s place accords with t...

Страница 89: ...ep The both figures of the ten s and one s place accord with the error code 7 Determine the error code The figures indicated when you hear the beep sound are error code Error codes and description Ref...

Страница 90: ...normality 81 Outdoor Unit E1 Outdoor unit PCB abnormality 84 E5H OL activation compressor overload 86 E6H Compressor lock 87 E7 DC fan lock 88 E8 Input overcurrent detection 89 EA Four way valve abnor...

Страница 91: ...on of connector Troubleshooting Note Check the following connector Check the combination of the indoor and outdoor unit OK Check the connection of connectors See Note Correct the connection OK Error r...

Страница 92: ...ing heating operation the temperature detected by the indoor heat exchanger thermistor is used for the heating peak cut control operation halt outdoor fan stop etc Malfunction Decision Conditions Free...

Страница 93: ...ean the air filter Clean the indoor heat exchanger Replace the indoor unit PCB Replace the thermistor Does it conform to the thermistor characteristic chart Check the air filter Check the dust accumul...

Страница 94: ...is used to determine abnormal fan motor operation Malfunction Decision Conditions The detected rotation speed does not reach the demanded rotation speed of the target tap and is less than 50 of the ma...

Страница 95: ...e fan rotate smoothly Does the fan rotate Is the motor power supply voltage 310 340 VDC generated Is the motor control voltage 15 VDC generated Turn off the power supply and rotate the fan by hand Tur...

Страница 96: ...mpressor operation Supposed Causes Disconnection of connector Defective thermistor Defective indoor unit PCB Troubleshooting Check No 06 Refer to P 120 C4 Indoor heat exchanger thermistor C9 Room temp...

Страница 97: ...upply waveform Check the voltage of the connection wires on the indoor terminal board between No 1 and No 3 and between No 2 and No 3 YES YES Replace the indoor unit PCB Locate the cause of the distur...

Страница 98: ...iring of connecting wires Wrong indoor unit PCB or outdoor unit PCB mounted Defective indoor unit PCB Defective outdoor unit PCB Troubleshooting R11707 Caution NO YES YES YES NO NO Check the code numb...

Страница 99: ...Bs Noise Momentary fall of voltage Momentary power failure etc Troubleshooting 20 35 class Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be da...

Страница 100: ...y Replace the outdoor unit PCB Replace the harness Check to see if the outdoor unit is grounded Is LED A blinking Grounded NO Replace the connecting wires between the indoor and outdoor units Check th...

Страница 101: ...tive stop valve Troubleshooting Check No 04 Refer to P 118 Check No 05 Refer to P 119 Check No 06 Refer to P 120 Check No 11 Refer to P 122 R11999 Caution YES NG Discharge pipe thermistor NO OK OK NG...

Страница 102: ...or about 5 minutes without any other error Supposed Causes Compressor locked Compressor harness disconnected Troubleshooting Turn off the power Disconnect the harnesses U V and W R8399 Caution NO YES...

Страница 103: ...er error Supposed Causes Disconnection of the fan motor Foreign matters stuck in the fan Defective fan motor Defective outdoor unit PCB Troubleshooting Check No 15 Refer to P 124 R11708 Caution YES YE...

Страница 104: ...power switch before connecting or disconnecting connectors or parts may be damaged An input overcurrent may result from wrong internal wiring If the wires have been disconnected and reconnected for p...

Страница 105: ...itions A following condition continues over 1 10 minutes depending on the model after operating for 5 10 minutes depending on the model Cooling Dry room thermistor temp indoor heat exchanger temp 5 C...

Страница 106: ...r way valve defective or dust clogged Reconnect in position Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged R11710 Four way valve coi...

Страница 107: ...s the system is shut down Reset condition Continuous run for about 60 minutes without any other error Supposed Causes Defective discharge pipe thermistor Defective outdoor heat exchanger thermistor or...

Страница 108: ...frigerant shortage Four way valve Water mixed Stop valve OK OK OK NG NG Check No 06 Check the thermistors Check No 11 Check the refrigerant line Check No 04 Check the electronic expansion valve Replac...

Страница 109: ...ceeds the limit Malfunction Decision Conditions The temperature sensed by the outdoor heat exchanger thermistor rises above C The error is cleared when the temperature drops below C Supposed Causes Th...

Страница 110: ...outdoor unit PCB Replace the electronic expansion valve or the coil Replace the outdoor unit PCB Clean the outdoor heat exchanger Change the installation location or direction Check the installation...

Страница 111: ...output converted to voltage value The DC voltage before compressor start up is below 50 V Supposed Causes Broken or disconnection of harness Defective outdoor unit PCB Troubleshooting Caution Be sure...

Страница 112: ...NO YES Connect it properly NO YES Replace the reactor NO YES Replace the compressor or the compressor relay harness Restart the operation again and if the error occurs again replace the outdoor unit P...

Страница 113: ...g condition through the position detection circuit Malfunction Decision Conditions If the error repeats the system is shut down Reset condition Continuous run for about 11 minutes 35 class 5 minutes w...

Страница 114: ...0 NO NO NO YES YES NO YES YES Check No 29 Check the short circuit of the diode bridge Check with the inverter checker Turn off the power Disconnect the harnesses U V and W Turn on the power Check the...

Страница 115: ...rect the power supply Voltage as rated R11471 NO NO YES NO YES YES Check with the inverter checker Turn off the power Disconnect the harnesses U V and W Turn on the power Check the electrolytic capaci...

Страница 116: ...nning frequency and the input current Malfunction Decision Conditions The compressor running frequency is above 52 Hz If the error repeats 4 times the system is shut down Reset condition Continuous ru...

Страница 117: ...ing frequency and CT detected input current Malfunction Decision Conditions The compressor running frequency is more than 55 Hz and the CT input current is below 0 5 A If the error repeats 4 times the...

Страница 118: ...on the power again and restart operation Compressor running 320 50 VDC Any LED OFF Running current as shown at right with relay cable 1 or 2 Voltage within the allowable range Supply voltage 15 Replac...

Страница 119: ...V 25 class 0 02 V with the power on J3 error is judged if the discharge pipe temperature is lower than the heat exchanger temperature Supposed Causes Disconnection of the connector for the thermistor...

Страница 120: ...e following thermistors Outdoor temperature thermistor Discharge pipe thermistor Outdoor heat exchanger thermistor Cooling Outdoor heat exchanger temperature Heating Indoor heat exchanger temperature...

Страница 121: ...e compressor off the radiation fin temperature is above C The error is cleared when the radiation fin temperature drops below C To cool the electrical components the outdoor fan starts when the radiat...

Страница 122: ...rn it on again Check the radiation fin temperature Check No 07 Check the installation condition Radiation fin dirty Above C Check No 09 Check the outdoor fan or related Error again or outdoor fan acti...

Страница 123: ...pressor on is above C The error is cleared when the radiation fin temperature drops below C If the error repeats the system is shut down Reset condition Continuous run for about 60 minutes without any...

Страница 124: ...irty Check No 09 Check the outdoor unit fan or related Error displayed again Has PCB been replaced Check if the silicon grease applied properly on the radiation fin If not apply it See Note Check the...

Страница 125: ...hile the compressor is running A speed error occurs while the compressor is running An output overcurrent signal is fed from the output overcurrent detection circuit to the microcomputer If the error...

Страница 126: ...ck No 07 Check the installation condition Check with the inverter checker Turn off the power and disconnect the harnesses U V and W Turn off the power and reconnect the harnesses Turn on the power aga...

Страница 127: ...rature tends to rise Refrigerant shortage detection III Refrigerant shortage is detected by checking the difference between suction and discharge temperature Malfunction Decision Conditions Refrigeran...

Страница 128: ...es Disconnection of the discharge pipe thermistor indoor or outdoor heat exchanger thermistor room or outdoor temperature thermistor Closed stop valve Refrigerant shortage refrigerant leakage Poor com...

Страница 129: ...e pipe flare or replace the union Check the power transistor harness for looseness Correct it as required Also replace the cracked pipe Check the pipes for improper contact Correct them as required Al...

Страница 130: ...oltage detection The voltage detected by the DC voltage detection circuit is below 150 180 V depending on the model Over voltage detection An over voltage signal is fed from the over voltage detection...

Страница 131: ...before connecting or disconnecting connectors or parts may be damaged NO YES YES NO YES Precaution before turning on the power again NO Replace the fan motor or the outdoor unit PCB Check the supply...

Страница 132: ...hen the data sent from the PM1 can not be received for 9 seconds The error counter is reset when the data from the PM1 can be successfully received Supposed Causes Defective outdoor unit PCB Troublesh...

Страница 133: ...wer off and on again and check to see if the EV generate latching sound 3 If the EV does not generate latching sound in the above step 2 disconnect the connector and check the continuity using a teste...

Страница 134: ...e coil from the connector and check the continuity Start heating operation Four way valve coil Cooling Dry No continuity Heating Continuity Replace the outdoor unit PCB Replace the four way valve coil...

Страница 135: ...temperature and resistance is shown in the table and the graph below For the models in which the thermistor is directly mounted on the PCB disconnect the connector for the PCB and measure Thermistor...

Страница 136: ...e outdoor heat exchanger very dirty Change the installation location or direction Change the installation location or direction Clean the outdoor heat exchanger Change the installation location or dir...

Страница 137: ...orm disturbance near the zero cross sections circled in Fig 2 5 1 9 Inverter Units Refrigerant System Check Check No 11 R7159 YES YES NO NO Outdoor fan system is functioning Check the outdoor fan syst...

Страница 138: ...r from the outdoor unit PCB To disengage the connector press the protrusion on the connector Follow the procedure below to measure resistance between the terminals of the DB1 and the terminals of the...

Страница 139: ...n motor is rotated 1 turn by hand When the fuse is melted check the outdoor fan motor for proper function If NG in step 2 Defective PCB Replace the outdoor unit PCB If NG in step 4 Defective Hall IC R...

Страница 140: ...e resistance between the pins of the DB1 as below If the resistance is or less than 1 k short circuit occurs on the main circuit 20 class 25 class terminal of the tester in case of digital terminal 2...

Страница 141: ...178 2 9 Removal of Compressor 181 3 Outdoor Unit RXL20G2V1B9 183 3 1 Removal of Outer Panels Fan Motor 183 3 2 Removal of Electrical Box 192 3 3 Removal of Drain Pan Heater 195 3 4 Removal of PCB 197...

Страница 142: ...SiENBE04 925_A Removal Procedure 127 5 6 Removal of Sound Blanket Thermistors 259 5 7 Removal of Four Way Valve 261 5 8 Removal of Electronic Expansion Valve 262 5 9 Removal of Compressor 263...

Страница 143: ...pressed for 5 seconds the forced cooling operation is performed for about 15 minutes 2 Remove the air filter 1 Hold the both sides of the front panel and open the panel to the position where it stops...

Страница 144: ...rifying filter is not marked for difference between the right and left sides 2 Remove the Titanium apatite photocatalytic air purifying filter ASSY by bending the air filter and unfastening the projec...

Страница 145: ...r supplies before disassembling work Step Procedure Points 1 Hold the both sides of the front panel and open the panel over the position where it stops 2 Slide the left rotary shaft to the right and r...

Страница 146: ...e front panel make sure that the shaft is fitted in the guide before closing the panel Caution on Mounting When mounting the front panel fit the right and left rotary shafts one by one into the groove...

Страница 147: ...r supplies before disassembling work Step Procedure Points 1 Remove the service cover 1 Remove the screw of the service cover Preparation Remove the front panel according to the Removal of Front Panel...

Страница 148: ...133 2 Remove the front grille 1 Remove the 2 screws one each at the right and left 2 The front grille has 3 hooks at the top 3 Unfasten the left hook 4 Unfasten the center hook Step Procedure Points...

Страница 149: ...the right hook 6 Pull the upper part of the front grille out and lift the lower part up and then remove the front grille Caution on Mounting When mounting the front grille make sure that the 3 hooks a...

Страница 150: ...o the upper side and the small horizontal blade to the lower side Do not put them in the wrong place 2 Unfasten the center shaft while bending the horizontal blade large slightly 3 Unfasten the left s...

Страница 151: ...ing the horizontal blade small slightly 2 Unfasten the left shaft 3 Unfasten the key alignment shaft at the right side 3 Remove the fan guard 1 Unfasten the hooks at the lower part of the fan guard wi...

Страница 152: ...ock rod 3 Unfasten the hooks at the upper 3 positions by pressing them with a flat screwdriver 4 Remove the vertical blade ASSY A vertical blade ASSY has 5 fins It is impossible to replace only one fi...

Страница 153: ...ep Procedure Points 1 The figure shows the connections of wire harnesses Preparation Remove the front grille according to the Removal of Front Grille 2 Remove the screw of the wire fixture 3 Remove th...

Страница 154: ...Release the harness for swing motors from the hook 7 Pull out the indoor heat exchanger thermistor Be careful not to lose the clip of the thermistor 8 Remove the screw and detach the earth wire Step P...

Страница 155: ...at the upper far side by pressing it from above and pulling the electrical box toward yourself 11 Lift up the electrical box and pull it out There is a hook also at the lower part of the back When mo...

Страница 156: ...ation Remove the electrical box according to the Removal of Electrical Box 2 Unfasten the hooks at the upper 2 positions of the shield plate 3 Unfasten the hook at the side of the shield plate 4 Lift...

Страница 157: ...e the signal receiver unit 1 Unfasten the 3 hooks 2 Unfasten the hook on the opposite side and lift up the signal receiver unit 3 Remove the signal receiver unit Step Procedure Points R12277 Signal re...

Страница 158: ...NT EYE sensor PCB 2 Disconnect the connector S26 from the INTELLIGENT EYE sensor PCB 5 Remove the signal receiver PCB 1 Unfasten the 3 hooks and remove the signal receiver PCB 2 Disconnect the connect...

Страница 159: ...ure shows the connection of wire harness for the display PCB 2 Unfasten the 4 hooks and remove the display PCB 3 Disconnect the connector S49 from the display PCB 7 Remove the control PCB 1 Unfasten t...

Страница 160: ...igures show the names of the PCB component parts S1 DC fan motor S21 HA connector S25 INTELLIGENT EYE sensor PCB S26 control PCB S32 indoor heat exchanger thermistor S41 swing motors S46 display PCB S...

Страница 161: ...air may be sucked in to generate an over pressure in refrigeration cycle thus resulting in pipe rupture or accidental injury 3 Lift up the indoor unit slightly and pull out the drain hose The illustra...

Страница 162: ...out the pipe 2 Widen the auxiliary pipe by about 10 20 degrees Caution When dismounting or mounting the indoor heat exchanger be sure to wear gloves or wrap it with cloth before proceeding You may be...

Страница 163: ...nfastening the lower hooks lift up the indoor heat exchanger by its right side When mounting the indoor heat exchanger make sure that the hook right is fastened 6 Remove the indoor heat exchanger Step...

Страница 164: ...before disassembling work Step Procedure Points 1 Remove the swing motor for vertical blade 1 Lift the indoor unit with a wooden base 2 Remove the screw behind the drain hose and disconnect the drain...

Страница 165: ...crewdriver 5 Remove the swing motor unit 6 Detach the interlock shaft from the swing motor with a flat screw driver 7 Remove the vertical blade interlock with a flat screwdriver Step Procedure Points...

Страница 166: ...BE04 925_A Indoor Unit Removal Procedure 151 8 Remove the 2 screws 9 Remove the swing motor for vertical blade 10 Disconnect the connector Connector green Step Procedure Points R10332 Screws R10333 R1...

Страница 167: ...posite the horizontal blades do not move smoothly or the noise may be heard 1 Set the motor for the upper blade first connector white 2 Then set the motor for the lower blade connector red 3 Fix the b...

Страница 168: ...least 10 min before disassembling work Step Procedure Points 1 Remove the right side panel Preparation Remove the indoor heat exchanger according to the Removal of Indoor Heat Exchanger 1 Remove the...

Страница 169: ...screws of the fan motor fixing plate 4 Unfasten the hook of the fan motor fixing plate and remove the plate 2 Remove the fan rotor 1 Dislocate the fan rotor by sliding it to the right Step Procedure...

Страница 170: ...th approx 5 mm left 2 Tighten the screw until it stops Then turn the screw in one scroll 3 Move the fan rotor and confirm the fan motor and the fan rotor are installed appropriately 4 Tighten the scre...

Страница 171: ...r supplies before disassembling work Step Procedure Points 1 Appearance features Take care not to cut your finger by the fins of the outdoor heat exchanger 2 Remove the panels The stop valve cover is...

Страница 172: ...ws and lift the top panel 3 Remove the drip proof plate 4 Remove the 4 screws and remove the discharge grille The discharge grille has 4 hooks Step Procedure Points DAIKIN INVERTER Top panel R7190 DAI...

Страница 173: ...ove the screw and remove the drain pan heater cover 6 Remove the 7 screws of the front panel 7 Unfasten the hooks Pull and remove the front panel The front panel has 4 hooks Step Procedure Points R932...

Страница 174: ...screw has reverse winding Nut size M6 1 Remove the washer fitted nut of the outdoor fan 2 Remove the outdoor fan When reassembling align mark of the outdoor fan with D cut section of the motor shaft...

Страница 175: ...n motor lead wire through the back of the fan motor so as not to be entangled with the outdoor fan 7 Remove the 4 screws and remove the fan motor Be sure to remove the lower screws first If the upper...

Страница 176: ...or Unit RXL20G2V1B Removal Procedure 161 8 Remove the screw and remove the fan motor fixing frame When reassembling fit the lower hooks into the bottom frame Step Procedure Points R9333 Fan motor fixi...

Страница 177: ...edure 4 Remove the right side panel 1 Remove the 2 screws on the rear side 2 Release the outdoor temperature thermistor 3 Remove the 4 screws on the right side panel Step Procedure Points R12312 R1228...

Страница 178: ...63 4 Remove the screw near the stop valves 5 Unfasten the hook on the rear side When reassembling make sure to fit the hook 6 Lift up the right side panel and remove it When reassembling make sure to...

Страница 179: ...sassembling work Step Procedure Points 1 Disconnect the 2 connectors for the reactor Preparation Remove the panels and disconnect the connector for the fan motor according to the Removal of Outer Pane...

Страница 180: ...etic relay S50 and for the thermistors S90 5 Disconnect the connectors for the filter PCB S10 and for the overload protector S40 6 Disconnect the connectors for the electronic expansion valve coil S20...

Страница 181: ...he connectors for the filter PCB HL3 HN3 8 Remove the wire harness for standby electricity saving 9 Cut the clamps at 2 locations 10 Disconnect the connectors for the drain pan heater with a flat scre...

Страница 182: ...SiENBE04 925_A Outdoor Unit RXL20G2V1B Removal Procedure 167 11 Lift and remove the electrical box Step Procedure Points R9348 Electrical box...

Страница 183: ...emove the drain pan heater 1 Cut the clamp 2 Remove the screw of the mounting clamp 3 Release the drain pan heater ASSY from the ditch between the bottom frame and the outdoor heat exchanger ASSY Remo...

Страница 184: ...r Unit RXL20G2V1B Removal Procedure 169 4 Cut the clamp 5 Remove the 3 screws and remove the left side panel 6 The fuses are inside the drain pan heater Step Procedure Points R9352 R12307 Left side pa...

Страница 185: ...ower supplies before disassembling work Step Procedure Points 1 Release the discharge pipe thermistor Be careful not to lose the clip for the thermistor 2 Cut the clamp 3 Pull out the outdoor heat exc...

Страница 186: ...SiENBE04 925_A Outdoor Unit RXL20G2V1B Removal Procedure 171 4 Feature of the thermistors Step Procedure Points R9356...

Страница 187: ...power supplies before disassembling work Step Procedure Points 1 Remove the main PCB You can remove the main PCB when you disconnect the lead wires on the terminal board without removing the electric...

Страница 188: ...ENBE04 925_A Outdoor Unit RXL20G2V1B Removal Procedure 173 4 Remove the 4 screws 5 Unfasten the 3 hooks on the upper side 6 Lift and pull out the main PCB Step Procedure Points R9359 Screws R9360 R936...

Страница 189: ...main PCB Refer to page 12 for detail S10 HL3 HN3 filter PCB S20 electronic expansion valve coil S30 compressor S40 overload protector S50 magnetic relay S70 fan motor S80 four way valve coil S90 ther...

Страница 190: ...power supplies before disassembling work Step Procedure Points 1 Remove the reactor Preparation Remove the outer panels according to the Removal of Outer Panels Fan Motor Remove the electrical box acc...

Страница 191: ...NBE04 925_A 176 Removal Procedure 2 The partition plate has a hook on the lower side Lift and pull the partition plate to remove When reassembling fit the lower hook into the bottom frame Step Procedu...

Страница 192: ...d open the sound blanket outer Preparation Remove the outer panels according to the Removal of Outer Panels Fan Motor Remove the electrical box according to the Removal of Electrical Box 2 Lift and re...

Страница 193: ...t for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Pull out the electronic expansion valve coil 2 Remove the terminal cover 3 Disconnect th...

Страница 194: ...ation brazing 2 It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat Keep below 120 C For the sake of this wrap the fo...

Страница 195: ...ting pipes by all means because the sawdust comes into the circuit When withdrawing the pipes be careful not to pinch them firmly with pliers The pipes may get deformed Provide a protective sheet or a...

Страница 196: ...nvironment protection do not discharge the refrigerant gas in the atmosphere Make sure to collect all the refrigerant gas Cautions for restoration 1 Restore the piping by non oxidation brazing 2 It is...

Страница 197: ...omes into the circuit When withdrawing the pipes be careful not to pinch them firmly with pliers The pipes may get deformed Provide a protective sheet or a steel plate so that the brazing flame cannot...

Страница 198: ...disassembling work Step Procedure Points 1 Appearance features Take care not to cut your finger by the fins of the outdoor heat exchanger 2 Remove the panels The stop valve cover is united with the s...

Страница 199: ...ws and lift the top panel 3 Remove the drip proof plate 4 Remove the 4 screws and remove the discharge grille The discharge grille has 4 hooks Step Procedure Points DAIKIN INVERTER Top panel R7190 DAI...

Страница 200: ...the screw and remove the drain pan heater cover 6 Remove the 7 screws of the front panel 7 Unfasten the hooks Pull and remove the front panel The front panel has 4 hooks Step Procedure Points R9329 D...

Страница 201: ...size M6 1 Remove the washer fitted nut of the outdoor fan 2 Remove the outdoor fan When reassembling align mark of the outdoor fan with D cut section of the motor shaft 3 Release the outdoor temperatu...

Страница 202: ...r Unit RXL20G2V1B9 Removal Procedure 187 4 Cut the clamp 5 Disconnect the connector for the fan motor S70 6 Release the fan motor lead wire from the hook Step Procedure Points R11830 R11831 S70 R11832...

Страница 203: ...B9 SiENBE04 925_A 188 Removal Procedure 7 Remove the screw and remove the fan motor fixing frame When reassembling fit the lower hooks into the bottom frame Step Procedure Points R12309 Fan motor fixi...

Страница 204: ...reassembling put the fan motor lead wire through the back of the fan motor so as not to be entangled with the outdoor fan 9 Remove the 4 screws and remove the fan motor 4 Remove the right side panel...

Страница 205: ...Removal Procedure 2 Remove the 4 screws on the right side panel 3 Remove the screw near the stop valves 4 Unfasten the hook on the rear side When reassembling make sure to fit the hook Step Procedure...

Страница 206: ...SiENBE04 925_A Outdoor Unit RXL20G2V1B9 Removal Procedure 191 5 Lift up the right side panel and remove it When reassembling make sure to fit the hook Step Procedure Points R12272 Hook...

Страница 207: ...pplies before disassembling work Step Procedure Points 1 Disconnect the connector for the overload protector S40 Preparation Remove the panels and disconnect the connector for the fan motor according...

Страница 208: ...r the compressor 5 Disconnect the connector for the electronic expansion valve coil S20 6 Cut the clamp 7 Pull out the outdoor heat exchanger thermistor Be careful not to lose the clip for the thermis...

Страница 209: ...arge pipe thermistor Be careful not to lose the clip for the thermistor 9 Disconnect the connectors for the drain pan heater with a flat screwdriver 10 Lift and remove the electrical box Step Procedur...

Страница 210: ...emove the drain pan heater 1 Cut the clamp 2 Remove the screw of the mounting clamp 3 Release the drain pan heater ASSY from the ditch between the bottom frame and the outdoor heat exchanger ASSY Remo...

Страница 211: ...G2V1B9 SiENBE04 925_A 196 Removal Procedure 4 Cut the clamp 5 Remove the 3 screws and remove the left side panel 6 The fuses are inside the drain pan heater Step Procedure Points R9352 R12307 Left sid...

Страница 212: ...power supplies before disassembling work Step Procedure Points 1 Remove the main PCB You can remove the main PCB when you disconnect the lead wires on the terminal board without removing the electrica...

Страница 213: ...ation button PCB Disconnect the connector S110 to remove the forced operation button PCB Be careful of a sharp protrusion at the back of the forced operation button PCB 5 Disconnect the relay connecto...

Страница 214: ...925_A Outdoor Unit RXL20G2V1B9 Removal Procedure 199 7 Release the harness 8 Cut the clamps at the 2 locations 9 Disconnect the connector for the filter PCB S10 Step Procedure Points R11859 R11860 R1...

Страница 215: ...r the magnetic relay S50 and for the forced operation button PCB S100 11 Disconnect the connector for the filter PCB HL3 HN3 12 Release the harnesses from the hook 13 Release the harness for the outdo...

Страница 216: ...ove the main PCB Refer to page 14 for detail S10 HL3 HN3 filter PCB S20 electronic expansion valve coil S40 overload protector S50 magnetic relay S70 fan motor S80 four way valve coil S90 thermistors...

Страница 217: ...20G2V1B9 SiENBE04 925_A 202 Removal Procedure 2 Remove the filter PCB 1 Release the harnesses from the hook 2 Cut the clamp 3 Release the harnesses from the hook Step Procedure Points R11869 Filter PC...

Страница 218: ...oor Unit RXL20G2V1B9 Removal Procedure 203 4 Release the harnesses from the hooks 5 Remove the screw 6 Unfasten the 2 hooks 7 Lift and pull out the filter PCB Step Procedure Points R11873 R11874 R1187...

Страница 219: ...Outdoor Unit RXL20G2V1B9 SiENBE04 925_A 204 Removal Procedure 8 Feature of the filter PCB Refer to page 14 for detail Step Procedure Points R11878...

Страница 220: ...ower supplies before disassembling work Step Procedure Points 1 Remove the reactor Preparation Remove the outer panels according to the Removal of Outer Panels Fan Motor Remove the electrical box acco...

Страница 221: ...iENBE04 925_A 206 Removal Procedure 2 The partition plate has a hook on the lower side Lift and pull the partition plate to remove When reassembling fit the lower hook into the bottom frame Step Proce...

Страница 222: ...after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the sound blanket top Since the piping ports are torn easily remove the sound blanket carefully 2 Untie t...

Страница 223: ...or Unit RXL20G2V1B9 SiENBE04 925_A 208 Removal Procedure 4 Pull the sound blanket inner out 5 Pull the sound blanket bottom out Step Procedure Points R11887 Sound blanket inner Sound blanket bottom R1...

Страница 224: ...ait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Pull out the electronic expansion valve coil 2 Remove the terminal cover 3 Disconnect the...

Страница 225: ...dation brazing 2 It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat Keep below 120 C For the sake of this wrap the f...

Страница 226: ...tting pipes by all means because the sawdust comes into the circuit When withdrawing the pipes be careful not to pinch them firmly with pliers The pipes may get deformed Provide a protective sheet or...

Страница 227: ...ronment protection do not discharge the refrigerant gas in the atmosphere Make sure to collect all the refrigerant gas Cautions for restoration 1 Restore the piping by non oxidation brazing 2 It is re...

Страница 228: ...s because the sawdust comes into the circuit When withdrawing the pipes be careful not to pinch them firmly with pliers The pipes may get deformed Provide a protective sheet or a steel plate so that t...

Страница 229: ...er Panels Procedure Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Appearance features 2 Remove the panels 1 Remove t...

Страница 230: ...emove the 4 screws and remove the discharge grille When reassembling make sure to fit the 4 hooks 4 Remove the screw and remove the stop valve cover The stop valve cover is united with the shield plat...

Страница 231: ...n reassembling fasten the wires with screws on the terminal board 1 Remove the 3 screws to remove the wiring fixture Then remove the all screws to disconnect the power supply cables and the connecting...

Страница 232: ...terminal board 4 Disconnect the connectors of the drain pan heater 5 Cut the clamp 6 Disconnect the connector for the fan motor S70 For removal procedure of the fan motor lead wire refer to Removal of...

Страница 233: ...nector for the overload protector S40 8 Disconnect the connector for the electronic expansion valve coil S20 9 Disconnect the connector for the four way valve coil S80 10 Disconnect the connector for...

Страница 234: ...ompressor 12 Disconnect the 2 connectors for the reactor 13 Release the discharge pipe thermistor Be careful not to lose the clip for the thermistor 14 Detach the clamp for the thermistors from the el...

Страница 235: ...Outdoor Unit RXL25G2V1B SiENBE04 925_A 220 Removal Procedure 15 Remove the screw in front of the electrical box 16 Lift and remove the electrical box Step Procedure Points R0263 R0264...

Страница 236: ...tep Procedure Points 1 Remove the screw and remove the electrical box cover Preparation Remove the panels according to the Removal of Outer Panels Remove the electrical box according to the Removal of...

Страница 237: ...dure 4 Release the earth wire from the hook 5 Remove the 2 screws and detach the 1 clip to remove the radiation shield plate 6 Cut off the 5 clamps and disconnect the wire harnesses Step Procedure Poi...

Страница 238: ...e the 8 screws in total to remove the PCB 8 Lift up the back side slightly and unfasten the hooks of the front When reassembling make sure that the hooks of the electrical box are placed on the PCB 9...

Страница 239: ...10 Remove the PCB 11 Detach the terminals from the terminal board Refer to page 16 for detail S20 electronic expansion valve coil S40 overload protector S70 fan motor S80 four way valve coil S90 therm...

Страница 240: ...SiENBE04 925_A Outdoor Unit RXL25G2V1B Removal Procedure 225 12 Remove the screw of the radiation fin Step Procedure Points R12214 Radiation fin R8171...

Страница 241: ...emove the drain pan heater 1 Cut the clamp 2 Remove the screw of the mounting clamp 3 Release the drain pan heater ASSY from the ditch between the bottom frame and the outdoor heat exchanger ASSY Remo...

Страница 242: ...r Unit RXL25G2V1B Removal Procedure 227 4 Cut the clamp 5 Remove the 3 screws and remove the left side panel 6 The fuses are inside the drain pan heater Step Procedure Points R9352 R12307 Left side pa...

Страница 243: ...ing off all power supplies before disassembling work Step Procedure Points 1 Remove the partition plate When reassembling fit the lower hook into the bottom frame 1 Remove the 2 screws 2 The partition...

Страница 244: ...anket carefully 1 Untie the string open the sound blanket outer and pull it out 2 Remove the sound blanket top upper 3 Remove the sound blanket top lower 4 Open the sound blanket inner and pull it out...

Страница 245: ...ore disassembling work Step Procedure Points 1 Remove the outdoor fan The screw has reverse winding Nut size M6 1 Remove the washer fitted nut of the outdoor fan 2 Remove the outdoor fan When reassemb...

Страница 246: ...emoval Procedure 231 2 The figure shows the arrangement of the fan motor lead wire 3 Remove the 1 screw of the fan motor fixing frame 4 Remove the fan motor fixing frame Step Procedure Points R8185 R1...

Страница 247: ...an motor lead wire 6 Release the fan motor lead wire When reassembling put the fan motor lead wire through the back of the fan motor so as not to be entangled with the outdoor fan 7 Remove the 4 screw...

Страница 248: ...e Points 1 Release the discharge pipe thermistor Be careful not to lose the clip for the thermistor 2 Cut the clamp and pull out the outdoor heat exchanger thermistor 3 The thermistors for outdoor tem...

Страница 249: ...r supplies before disassembling work Step Procedure Points 1 Remove the peripheries Preparation Remove the sound blanket Detach the four way valve coil and the 2 clamps and then detach the wire harnes...

Страница 250: ...erant gas Cautions for restoration 1 Restore the piping by non oxidation brazing 2 It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets...

Страница 251: ...ting pipes by all means because the sawdust comes into the circuit When withdrawing the pipes be careful not to pinch them firmly with pliers The pipes may get deformed Provide a protective sheet or a...

Страница 252: ...tes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the terminal cover 2 Disconnect the lead wires of the compressor 3 Unfasten the hooks with a f...

Страница 253: ...happen that the refrigerant oil in the compressor catches fire prepare wet cloth so as to extinguish fire immediately Caution From the viewpoint of global environment protection do not discharge the r...

Страница 254: ...y In case of difficulty with gas brazing machine 1 Disconnect the brazed part where is easy to disconnect and restore 2 Cut pipes on the main unit with a tube cutter in order to make it easy to discon...

Страница 255: ...10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the panels Take care not to cut your finger by the fins of the outdoor heat exchanger 1...

Страница 256: ...the discharge grille upwards and remove it The discharge grille has 4 hooks 4 Remove the 6 screws of the front panel 5 Push the front panel and lift the shield plate to unfasten the hooks Step Procedu...

Страница 257: ...left side hooks and then the right side hook Remove the front panel Lift the front panel while pushing the left side panel inwards Lift the front panel and unfasten the right side hook When reassembl...

Страница 258: ...Procedure 243 2 Remove the stop valve cover 1 Remove the screw of the stop valve cover 2 Pull down the stop valve cover to unfasten the hooks and remove it The stop valve cover has 6 hooks Step Proce...

Страница 259: ...Procedure Points 1 Remove the electrical box cover Preparation Remove the top panel and the front panel according to the Removal of Outer Panels This procedure is not necessary to remove the outdoor...

Страница 260: ...2V1B Removal Procedure 245 2 Remove the fan motor 1 Detach the clamp and disconnect the connector for the fan motor S70 2 Release the fan motor lead wire from the 7 hooks Step Procedure Points R5258 R...

Страница 261: ...fan with D cut section of the motor shaft 4 Remove the lower 2 screws from the fan motor first Be sure to remove the lower screws first If the upper screws are removed first the fan motor the center...

Страница 262: ...Procedure 247 6 Release the fan motor lead wire from the 2 hooks and pull the fan motor out When reassembling put the fan motor lead wire through the back of the fan motor so as not to be entangled wi...

Страница 263: ...s before disassembling work Step Procedure Points 1 Remove the 2 screws of the shield plate Preparation Remove the top panel and the front panel according to the Removal of Outer Panels 2 Slide the sh...

Страница 264: ...nit RXL35G2V1B Removal Procedure 249 4 Disconnect the 2 earth wires 5 Remove the 3 screws of the right side panel 6 Remove the screw of the electrical box Step Procedure Points R9391 Earth wires R9392...

Страница 265: ...connectors of the drain pan heater 8 Unfasten the hooks and remove the right side panel When reassembling insert the 2 hooks of the lower part and the 1 hook of the upper back 9 Remove the screws of...

Страница 266: ...Detach the 2 wire clamps 12 Disconnect the connectors of the front side S20 electronic expansion valve coil S40 overload protector S80 four way valve coil S90 thermistors 13 Disconnect the relay conn...

Страница 267: ...etach the clamp and release the thermistor lead wires from the hook 15 Remove the screw 16 Release the outdoor temperature thermistor 17 Release the harness of the outdoor temperature thermistor from...

Страница 268: ...SiENBE04 925_A Outdoor Unit RXL35G2V1B Removal Procedure 253 18 Lift and remove the electrical box Step Procedure Points R9404 Electrical box...

Страница 269: ...ork Step Procedure Points 1 Remove the cover of the electrical box Preparation Remove the electrical box according to the Removal of Electrical Box 2 Disconnect the connectors from the service monitor...

Страница 270: ...5 5 Unfasten the hook on the right 6 Open the terminal board 7 Disconnect the harnesses 1 Black 2 White 3 Red L1 Black L2 Brown N1 White N2 Blue 8 Disconnect the 2 connectors for the reactor HR1 HR2 S...

Страница 271: ...iENBE04 925_A 256 Removal Procedure 9 Remove the 3 screws of the main PCB 10 Unfasten the 4 hooks 11 Lift up and remove the main PCB Refer to page 18 for detail Step Procedure Points Main PCB R5287 R5...

Страница 272: ...emove the drain pan heater 1 Cut the clamp 2 Remove the screw of the mounting clamp 3 Release the drain pan heater ASSY from the ditch between the bottom frame and the outdoor heat exchanger ASSY Remo...

Страница 273: ...1B SiENBE04 925_A 258 Removal Procedure 4 Cut the clamp 5 Remove the 3 screws and remove the left side panel 6 The fuses are inside the drain pan heater Step Procedure Points R9352 R12307 Left side pa...

Страница 274: ...tes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the sound blanket back 2 Remove the sound blanket outer Since the piping ports are torn easily...

Страница 275: ...r 6 Release the discharge pipe thermistor Be careful not to lose the clip for the thermistor 7 Cut the clamp and pull out the outdoor heat exchanger thermistor Step Procedure Points Sound blanket top...

Страница 276: ...oration 1 Restore the piping by non oxidation brazing 2 It is required to prevent the carbonization of the oil inside the four way valve and the deterioration of the gaskets affected by heat Keep belo...

Страница 277: ...the gas brazing machine Warning If the refrigerant gas leaks during work ventilate the room If the refrigerant gas is exposed to flames toxic gas may be generated Caution From the viewpoint of global...

Страница 278: ...Compressor Procedure Warning Be sure to wait for 10 minutes or more after turning off all power supplies before disassembling work Step Procedure Points 1 Remove the terminal cover 2 Disconnect the le...

Страница 279: ...exposed to flames toxic gas may be generated Warning Since it may happen that the refrigerant oil in the compressor catches fire prepare wet cloth so as to extinguish fire immediately Caution From the...

Страница 280: ...ere is easy to disconnect and restore 2 Cut pipes on the main unit with a tube cutter in order to make it easy to disconnect Note Do not use a metal saw for cutting pipes by all means because the sawd...

Страница 281: ...l Operation and Field Settings 1 Trial Operation 267 2 Field Settings 268 2 1 When 2 Units are Installed in 1 Room 268 2 2 Standby Electricity Saving 269 2 3 Jumper and Switch Settings 270 3 Applicati...

Страница 282: ...tem then restarts operation with the previous mode when the circuit breaker is restored In cooling mode select the lowest programmable temperature in heating mode select the highest programmable tempe...

Страница 283: ...or different address Both the indoor unit PCB and the infrared remote control need alteration Indoor Unit PCB 1 Remove the front grille 2 screws 2 Remove the electrical box 1 screw 3 Remove the shield...

Страница 284: ...ocedure is required for turning ON the function 1 Check that the main power supply is turned OFF Turn OFF if it has not been turned OFF 2 Remove the stop valve cover 3 Disconnect the selective connect...

Страница 285: ...speed setting Remote control setting Fan rpm is set to 0 Fan stop JC on indoor unit PCB Power failure recovery function Auto restart The unit does not resume operation after recovering from a power f...

Страница 286: ...or encouraging the heat radiation of the power transistor and the diode bridge Applying the paste should be implemented in accordance with the following instruction Remark There is the possibility of...

Страница 287: ...SiENBE04 925_A 272 Appendix Part 9 Appendix 1 Piping Diagrams 273 1 1 Indoor Unit 273 1 2 Outdoor Unit 274 2 Wiring Diagrams 276 2 1 Indoor Unit 276 2 2 Outdoor Unit 276...

Страница 288: ...EFRIGERANT FLOW FIELD PIPING 9 5CuT 6 4CuT FIELD PIPING M COOLING INDOOR UNIT FAN MOTOR HEAT EXCHANGER 6 4CuT HEATING THERMISTOR ON HEAT EXCH 4D058897C CROSS FLOW FAN COOLING 9 5CuT 6 4CuT M INDOOR UN...

Страница 289: ...FLOW 7 0CuT COOLING 4 0 ID 2 0CuT 4 8CuT PROPELLER FAN COMPRESSOR OUTDOOR UNIT 9 5CuT 6 4CuT 4 8CuT 9 5CuT MUFFLER ACCUMULATOR 9 5CuT 3D059586E 3D059590A OUTDOOR UNIT HEAT EXCHANGER 7 9CuT 7 9CuT 12...

Страница 290: ...7CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT 7 9CuT PROPELLER FAN MUFFLER HEAT EXCHANGER 7 9CuT 7 9CuT M COMPRESSOR 12 7CuT 12 7CuT 7 9CuT 7 9CuT 4 0CuT 4 0CuT CAPILLARY TUBE 4 CAPILLARY TUBE...

Страница 291: ...2 V3 SA1 YLW GRN E1 E2 Z2C N 2 outdoor FU4 1A FU5 1A E1H t S1T DRAIN PAN HEATER L1 PCB1 MR30 MR30_A MR30_B MRM20 MRM10 HR1 HN2 HL2 1 S11 9 BLK BLK BRN BRN 4 1 BLK BLK ORG BLU GRY WHT BLK BLK BLK BLK B...

Страница 292: ...GE HEATER FUSE INTELLIGENT POWER MODULE LIVE COIL REACTOR COMPRESSOR MOTOR FAN MOTOR MAGNETIC RELAY NEUTRAL PROTECTIVE EARTH SA1 OVERLOAD PROTECTOR PRINTED CIRCUIT BOARD CONNECTOR THERMISTOR THERMO ST...

Страница 293: ...1 1 5 S102 1 5 PCB2 S2 LED A SW1 SW4 Y1R S80 3 1 BLU BLU INCASEOF HEAT PUMP TYPE S20 1 6 WHT YLW ORG BLU BRN RED M Y1E outdoor 1 S90 6 BLK BLK BLK t t t OUTDOOR DISCHARGE CONDENSER R3T R2T R1T Z1C Z5C...

Страница 294: ...ication to the best of its knowledge No express or implied warranty is given for the completeness accuracy reliability or fitness for particular purpose of its content and the products and services pr...

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